ce235e153b
First run of wave7_probe: zero stalled samples across the whole run, against three consecutive heavy-probe runs that stalled at roughly 27, 83 and 255 s. The fix works. The guest is also visibly healthier -- 19 losses against 8 in a heavy-probe run of comparable length -- so starving the emulator had been suppressing the very activity the probe existed to watch. It also reported the first arrival of the whole line of work, and that arrival does not survive inspection. A record went 1 -> 0 at t=229, 0 -> 2 at t=259 and 2 -> 0 at t=274. Two craft appearing and vanishing within fifteen seconds is not a wave. The same log contains the giveaway: at t=60 a record read 13 and at t=75 the same record read 14, an increase, with nothing printed, because the probe only surfaced decreases. The hull-based liveness read flickers, and a flicker that straddles zero was indistinguishable from an arrival under the old rule. The count therefore stands at zero confirmed arrivals in eleven runs. Two changes, neither yet exercised: every increase is printed rather than only those from zero, and an increase from zero counts only if it persists across two consecutive samples, with a candidate that returns to zero discarded as flicker. Recorded because it was close: under the old rule this run would have been written up as "first arrival observed", which would have been the strongest-looking result so far and wrong.